Steam pump



May 1, 1923.

W. WILLSHAW STEAM- PUMP 2 SheetsShe'et 1 Filed Sept. 6, 1921 lA/M ,2 My

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fnvenzor i M722? MZZS/mw Q5 By duor-hey5 Patented May 1, 1923.

"WILLIAM wILLsHAw, or nEsMornEs, IOWA.

'' Main ter.

s'rner-r PU P.

Application filed September 6, 1921. Serial No. 498,930.

To all whom it may concern:

Be it known that 1, WILLIAM lviLLsrrAw,

a citizen or" the United States, and a resident of Des Moines, in the county 01" Folk and State of Iowa, have invented a certain new and useful Steam Pump, of which the following is a specification.

The object or" my invention is to provide a steam pump of simple, durable and inexpensive construction for the eiiicient use of steam tor pumping water in mines and the like.

With this and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the obj ccts contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawinns, in which: I j

Figure 1 shows a longitudinal, vertical, sectional view through a pump embodying my invention. I

Figure 2 shows a vertical, sectional view through one end of the valve controlling mechanism and the valve. U

Figure 3 shows a similar sectional view of the other end of thevalve cont-rolling mechanism and the valve.

Figure 41- shows a top or plan view of the device with the valve and valve controlling mechanism removed.

Figure 5 shows a detailed, sectional view taken on the line 5+5 of Figure 4.

Figure 6 shows a detailechsectional view taken on the line 66 of Figure 5. j I

V Figure 7 shows a detailed,"sectional view taken on the line 7'7 of Figure 8; and

Figure 8 shows a detailed, sectional view taken on the line 8 -8 of Figure: 7

improved pump, (as illustrated in the accompanying drawings, comprises a body indicatedby the reference numeral 10, preferjably a casting, having the supporting membersll anc l having iorined in its in.- terior a hollow cylinder 12. I i

At the central .part ofthe cylinder 12 from end to end thereof is, a partition 13, such for instance, as isshown in Figure 1. Mounted for slidable reciprocation within thecylinder 12 is a double-headed piston 14,

having" at its ends on opposite sides of the partition 13, the heads 15 and 16. The body of the piston 14., which connects the heads 15 and 16, is sli'dably mounted in a central opening 17 in the partition 13. piston heads 15 and 16 arepreferably oft'he type having piston. rings, which does away'with the necessity for packing ordinar ly used, 1n (pumps of this type; r

n the top surface thecasting orlbody 10 is formed a flat valve seat 18 on which travels a slide valve 19, having in itsunder surface the recess 20, and having-the central upwardly extending member 21. r

e In the valve'seat 18 nearthe ends thereof are ports 22 and 23. The port 22 shown for instance in Figure 1, communicates with a passage 24; extending through the body 10 to the right hand end of the cylinder 12 at the point 25, as illustrated in Figurel. The port 23 communicates with a passage 26 in the body 1O. The passage 26 communicates with the left-hand end of the cyli inder 12, as at the point 27. In the valve seat 18 between the ports-22 and 23 is an exhaust port 28?. On top of the body 10 and covering the valve seat 18 ii I is .a body 28, which is hQHOW and has the removable ends 29.,

In theinterioroii the body 28 near the ends thereof are formed cylinder portions 30 and 31, which terminate short of each;

other. as illustrated in Figure 1, and. are

open at their adjacent ends. Piston heads 32 and connected by the connecting memhers 34 are mounted in the cylinder pe ticns 30 and 31, as shown in Figure-1.

The piston members .34Lhave at their cen 9o tral portion a vertical guide35 in which theextension21is slidably mounted.

Steam may be supplied to the interior of the body 28 from any through the opening 36.

The piston heads .32 and 33are review with small passages 37 and 38,. illustrated for instance in Figures 2 and 3 and Fig- .ure 1.

Mounted I body 28 above the guide 35 is a transverse shaft 39., shown in Figures 1 and 8, having on its outer end ahandle 40, andon its inner endan arm 41, projecting downwardly into the guide 35.]

Itwill be seen that the: handle 40, the piston compnsing the heads 32 and 33 and the connecting members'lii' which I may for convenience call the piston A. may be reciprocated; At the ends of the cylinder 12 are removsuitable source 1 in the wall o f th e or able end members 42 ,and -18, which have body portions 4A and d5 of substantial thickness, as illustrated for instance in Figure 1. In the body .portions 14 and 45 are cylinders 46 and d7 terminating short of the inner ends of the body portions and covered at their outer ends by a plate or the like 419.

Slidably mounted in the cylinders 16 and r? are pistons or the like 50 and 51. The pistons 50 and 51 have stems 52 and 53 slidably mounted in the body portions 4% and 45 and projecting into the ends of the cylinder 1.2, as shown in Figure 1.

Communicating with the end of the cyl-.

in der 16 nearest the cylinder 12 is an haust port 5 1 which may communicate with the main exhaust or with the air. Communicating with the cylinder 4i? at the end thereof adjacent to the. cylinder 12 is a similar exhaust port 55. A passage 56, shown in dotted lines in Figure 4.; elrtends from the lower interior of the hollow body 28 at 57 to the outer part oi"? the cylinder 46 at 58. A similar passage 59 extends trom the interior of the casing 28 at 60 to the outer portion of the cylinder l? at 61.

It may be noted at this point, that the parts in Figure 1 are viewed from one side of the device, while the parts in Figures 5 and 8 are viewed from the other side ot the device.

horizontally spaced compartments 6 and 66. Above the compartments 65 and 66 is a compartment 67 see Figure 8) and below the compartments 65 and 66 is a compartment 68. l

The lower parts of the compartments 65 and 66 have valve seats 69 and 76. Wl'liifli cooperate with valves .71 and 72. The com partment 65 communicates by means ot a passage 78 with the cylinder 12 on the righthand side of the partition 13. shown in Figure 1, and on the left-hand side of the partition, as the parts are illustrated in Figures 4i. 5 and 8.

The compartment 66 communicates by means of a passage 74 with the other end of the cylinder 12. I

Passages 7 5 afford communication through the valve seat 69 between the compartment 65 and the compartment 68. Passages 76 afford similar communication between the compartment 66 and 3 the compartment 68. Passages 77 afford communication. between the compartment 65 and the compartment 67 and passages 78 afford communication between the compartment 66 and the compartment 67.

For coo eratin with the )assa 'es 7? a valve 79 is provided. A similar valve 86 cooperates with the passages 78.

Communicating with the compartment 68 is a water supply tube 81. A water discharge tube 82 leads from the compartment 67.

Secured to the valve '71, shown for instance in Figure 8, is a val *e stem 83 slidably mounted in the partition between the compartments 65 and 67- and slidably mounted in the top of the compartment 67.

The stem 8% of the valve 72 is slidably extended upwardly through the partition between the compartments 66 and 6'? and through the top of the compartment 67.

Mounted on the stem 83 between the partition 8 1, between the compartments 65 and 66 and the top of the compartment 67, is a sleeve 85. A similar sleeve 86 is similarly mounted on the stem 84. The valves 71 and 72 are yieldingly held sealed by means of springs 87 and 88 arranged on the stems 83 and 84: between said valves and the partition 8%.

Springs 89 and 90 mounted on the sleeves 85 and 86 between the valves 7 9 and 86 and the top of the compartment 67 yieldinggly hold the valves 79 and 80 in their seated positions.

Assuming that the parts are in their positions, shown in Figure 1, and that steam is supplied through the opening 36 to the interior of the member 28, then the operation. oi the partswill be as follows:

lhe steam in the hollow member 28 will pass through the passage 26 to the outer left-hand end of the cylinder 12. as shown in Figure 1, for forcingthe piston. which l have indicated generally by the re Ference character B, to the right.

The valves 51 and are subject to the pressure of steam traveling through the passages 59 and 56 from the interior of the member 28.

The steam passing into the left-hand end of the cylinder 12, as shown in Figure 1, forces the piston B toward the right. This draws the water into the right-hand end of the cylinder 12 through the passage 73 from the compartment and through the passages from the compartment 68. The same movement of the piston forces the water out of the left-hand end of the cylinder 12, as shown in Figure 1 through the pasasge 741, the compartment 66,the passages 7 8 and the compartment 67 to the discharge pipe 82.

The steam discharged from the right-hand end of the cylinder 12, as shown in Figure 1, passes through the passage 24 and the recess 20 to the discharge port 28 It will beinoted that the position of the I valve 19 is such that the recess 20 therein stands above the ports 22 and 28 andth at the piston A is at its right-hand position, as illustrated in Figure 1. i

When the piston B travels from its position shown in Figure 1 to its right-hand position, the head 16 strikes the stem 52, there- I I by forcing the piston 50, as shown in said figure, to the right; thereupon the piston 50 clears the opening 64 and the steam in the 1 cylinder member 30 between the end of said cylinder member and the adjacent end of the piston A is allowed to exhaust through the port 63*, the passage62 the port 64, and the exhaust port 54.

The port 37 in the head of the piston A, near the port 63*, is smaller than theport 63*, so that thereupon the pressure of the steam within the interior of the member 28 will force the piston A to the left from its position shown in Figurel. The movement of the piston A carries withit, the'valve 19 and moves the valve .19 from its positions shown in Figures 1 and 3 to its positions shown in Figure 2.. Thereupon the further passage of steam through the passage 26 will be prevented, while the passage 24: will be open to permit steam to pass therethrough to the right-hand end of the cylin-v dyer 12, as shown in Figure 1', for causing the return stroke of the piston B.

As soon as the head 16 leaves the stem 52, the steam passing from the interior of the member 28 through the passage; 59 and port '61 will move the piston 5O to the left, as

shown in Figure 1, for closing the port 64. On the stroke of the piston B to the left, as

shown in said figure, the water in theright-H mit manual adjustment of the slide valve.

Sometimes when the machine is not in use, the slidevalve or the double piston in the main cylinder will slide to improper positions with relation to each other. The slide valve can be easily adjusted manually to a proper position for starting the pump.

Changes may be made in the construction and arrangement of the various parts of my improved steam pump without departing from the real spirit and purpose of my invention, and it is my intention to cover by -my claims, any modifiedforms of structure,

or use of mechanical equivalent-s, which may be reasonably included within their scope; I claim as my-invention I 1. In a steam pump,-a cylinder" having a transverse partition therein, and having water passagessadjaoent to said partition,

piston heads in said cylinder on opposite sidesof said partitionfa memberconnecting said pistonhea-ds, slidably'mounted insaid said cylinder, an exhaust port leading from partition, a steam chamber, cylinder members in the 'opposite'ends thereof, piston heads in said last cylinder members, means 9 j for connectingsaid last namedpiston heads, f a slide valve operatively connected with said last means, steam passages extending from said-steam chamberpto the opposite ends of said first cylinder, an exhaust port leading from said steam chamber between said pas sages said valve having a recess'adapted in onset the posltions of the valve to establish one of said passages and in" another position of the valve to establish communication be- 190 tween said exhaust port and the other steam passage, cylinders at the ends ofsaid first cylinder having exhaust ports attheir inner ends,,pistons in said last described cylinders having-stems slidably projectedjinto the first cylinder, passages" leading from the interior of said cylinder members to the inner ends of said last-described cylinders,

passages leading from said steam chamber to the outer ends of said last-described cylinders.

1 2. In a device of the class described, a

cylinder having a transversepartition there in, and having water passages adjacent to said partition, piston heads slidably mounted in said cylinder on opposite sides of said partition, a member connecting said piston Y heads slidably mounted in said partition, a steam chamber, cylinder members inthe op- .posite ends thereof, piston heads in said cyl- 'inder members, means for connecting said piston heads, passages extending from'the opposite ends of said first cylinder to said I steam chamber, a slide valve operatively connected with said last-named means, ar-

ranged to cooperate with said passages, anexhaust port leading from said steam chamber between said passages, cylinders at the v i 1 ends of said first cylinder, having exhaust ports at their inner ends, pistons in said last cylinders having stems slidably projected into the first cylinder, passages leading from the interior'of said cylinder members to the inner ends of said last-described cylinders, passages leading from said steam chamber totheouter ends of said last-described cylinders, said valve having a recess adapted in one of its positions to establish communication between the first described exhaust port and one of the steam passages to the first cylinder and in another position of the max I valve to establish communication between said first described exhaust port and the other steam passage to the first described cylinder, Water compartments communicat ing with said water passages to the firstdescribed cylinder, intake passages in said water compartments, spring-controlled valves for said intake passages, outlet passages from said water compartments, and spring 7 10 controlled valves for controlling said outlet passages.

3. In a device of the class described, a cylinder having a transverse partition therein, and having water passages ad acent to said partition, piston heads slidably mounted in said cylinder on opposite sides of said partition, a member connecting said piston heads slidably mounted in said partition, a steam chamber, cylinder members in the op posite ends thereofipiston heads in said cylinder members, means for connecting said last-named piston heads, a slide valve operatively connected with said last means, passages extending from the opposite ends of said first cylinder to said, steam chamber,

said valve being arranged to cooperate with said passages, an exhaust port leading from said steam chamber between said passages, cylinders at the ends of said first cylinder having exhaust ports near their ends, pistons in said last-described cylinders having stems slidably projected into the first cylinder, passages leading from the interior of said cylinder members to the inner ends of said last, described cylinders, passages leading from said steam chamber to the outer ends of said last-described cylinders, said valve having a recess adapted in one of its positions to establish communication between the first described exhaust port and one of the steam passages to the first cylinder and in another position of the valve to establish communication between said first described exhaust port and the steam passage to the 4.5 first described cylinder, and manual means for operating said slide valve.

5. In a steam pump, a cylinder having a transverse partition, a double headed piston slidably mounted in said partition, a steam cylinder, passages connecting said steam cylinder with said first named cylinder on opposite sides of said partition, a slide valve for controlling the flow of steam through said passages, a piston in the steam cylinder operatively connected with said valve, means controllable by the movement of said first piston for controlling the flow of steam from said steam cylinder and the movement of the second piston, and manual means for actuating the second piston.

63. In a steampump, a cylinder having a transverse partition, a double headed piston slidably mounted in said partition, a steam cylinder, passages connecting said steam cylinder with said first named cylinder on opposite sides of said partition, a slide valve for controlling the flow of steam through said passages, a piston in the steam cylinder operatively connected with said valve, and 4 means controllable by the movement of said first piston for controlling the flow of steam from said steam cylinder and the movement of the second piston, said means including cylinders having communication near their ends with the steam cylinder and outlet openings and pistons in the last described cylinders.

Des Moines, Iowa, December 3, 1920.

WILLIAM WILLSHAW. 

